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- Replaced chained `.map().filter()` with direct `for` loops inside `normalizeTickers` (`src/tools/discover.ts`) and `getListedEquityTickers` (`src/data/sources/vndirectFinfo.ts`). - Avoids multiple intermediate array allocations and reduces garbage collection pressure when constructing Sets in these frequently called discovery paths. Co-authored-by: toreleon <42534763+toreleon@users.noreply.github.com>
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💡 What: Replaced chained
.map().filter()array operations with direct, indexedforloops when populatingSetstructures innormalizeTickersandgetListedEquityTickers.🎯 Why: Chaining array methods like
.map()and.filter()before passing the result tonew Set()creates multiple intermediate arrays. In hot paths (like scanning thousands of company profiles or normalizing tickers during discovery sweeps), this causes unnecessary memory allocation and garbage collection (GC) overhead.📊 Impact: Reduces transient memory allocations (removes O(N) intermediate array allocations) during ticker normalization and listed equity resolution, lowering GC pauses without altering logic.
🔬 Measurement: Verify tests still pass via
pnpm test. The changes are constrained strictly to internal data transformation flows and have no side-effects.PR created automatically by Jules for task 12352175224859765482 started by @toreleon